Gain quantization in analysis-by-synthesis linear predicted spee

Details Gain quantization in analysis-by-synthesis linear predicted spee Gain quantization in analysis-by-synthesis linear predicted spee

1997-10-31

1999-10-19

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704223, G01L 914

Patent

active

059704420

ABSTRACT:
A gain quantization method, in analysis-by-synthesis linear predictive speech coding, includes these steps: determine a first gain for an optimal excitation vector from a first code book; quantize the first gain; determine an optimal second gain for an optimal excitation vector from a second code book; determine a linear prediction of the logarithm of the second gain from the quantized first gain; and quantize the difference between the logarithm of the second gain and the linear prediction.

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